Prove √2 is a rational no.
Solve graphically the equation x +2y=5 and 2x-3y=-4also find the points where the lines meet x axus
Find the included angle between the two planes 2x+y+2z-4=0 and x+y+5=0
Find the included angle between the two planes 2x+y+2z-4=0 and x+y+5=0